How many arrows can go out of an input parameter node?
What is true of the import example in the exhibit?

In UML, what is the behavior of an object caused by?
Which arrowhead shows that the message represents an operation call, rather than a signal, in UML 2.0?

What do arrows in activity diagrams represent? (Choose two)
How many of the arrows in the exhibit must provide values before the round-cornered rectangle can start?

What does an activity contain? (Choose two)